Siltech Explorer 45 USB 3 m
Overview
The Siltech Explorer 45 USB is an entry-level USB cable designed for digital audio transmission. It uses a 6N single-crystal copper conductor (99.9999% purity) and benefits from nearly 40 years of Siltech signal-transmission expertise, delivering reliable performance while remaining more accessible than models using silver conductors.
Dutch engineering where every detail matters
At the heart of the Explorer 45 USB lies an exceptionally pure 6N single-crystal copper conductor, ensuring signal transfer with minimal loss. This particular metallurgy is the result of years of research at Siltech, which developed a production method to achieve higher-conductivity copper free from contaminants that could degrade performance over time.
The twisted-pair construction with four conductors forms the backbone of this cable. This specific geometry, inherited from the brand’s higher-end models, ensures stable digital signal transmission while minimizing electromagnetic interference. The insulation combines Teflon with a super shielding layer, creating an effective barrier against mechanical, radio-frequency, and electromagnetic disturbances that can affect signal integrity.
The metal end caps, called “barrels” at Siltech, are not mere ornaments: these brass elements with polished aluminum finish help damp external resonances and eliminate microphonic effects. This attention to mechanical details reflects the manufacturer’s holistic approach, where every component contributes to the final quality of the sonic result.
Technical choices in the service of musicality
The dual-layer Kapton–Teflon insulation is an innovation directly derived from research conducted on the higher ranges. This combination of dielectric materials offers robust mechanical protection while preserving the optimal electrical characteristics required for high-resolution digital transmission. Kapton provides thermal stability and mechanical strength, while Teflon ensures excellent dielectric properties.
The single-crystal structure of 6N copper deserves special attention. Unlike conventional copper, which features multiple grain boundaries that can create discontinuities in the signal path, the single-crystal structure offers an unobstructed route, preserving the signal’s integrity from source to converter. This results in a noticeable reduction in background noise and improved spatial definition.
Manufactured in the Netherlands to the same rigorous standards as all Siltech products, the Explorer 45 USB benefits from the brand’s exacting quality control. Each cable is individually checked with a Tektronix 70 GHz real-time oscilloscope, capable of high-resolution analysis up to measurable limits.
Flexible connectivity and broad compatibility
The Explorer 45 USB is available with USB Type-A to Type-B connectors, as well as in USB Type-C to Type-C versions, thus covering the majority of current configurations. Other connector types can be obtained on request from your local distributor, offering welcome adaptability for specific setups.
Despite its build quality, the cable remains highly flexible, making installation easy even in tight spaces. This suppleness contrasts with certain high-end cables whose rigidity can complicate integration into an existing system.
Documentation
Technical Specifications
Construction and Materials
- Metallurgy: ultra-pure 6N monocrystalline copper
- Architecture: twisted pair
- Number of cores: 4
- Insulation: Teflon with super shielding against interference
Available Connectors
- USB Type A / Type B
- USB Type C / Type C
Performance and Benefits
- Stable, precise digital signal transfer with minimal loss
- Ultra-pure 6N monocrystalline copper conductors for optimal quality
- Twisted-pair construction ensuring transfer stability
- Maximum protection thanks to Teflon insulation and super shielding
- Durability and reliability ensured by Siltech’s build quality
- Exceptional audiophile performance at an accessible price
General Information
The Explorer 45USB is an affordable audiophile digital cable from Siltech, available in USB versions (Type A / B or C / C). Designed for high-fidelity digital interconnection, it ensures stable, precise digital signal transfer thanks to its 6N monocrystalline copper conductors and protection via Teflon insulation and super shielding.
Frequently Asked Questions
What is the difference between 6N single-crystal copper and standard copper?
6N single-crystal copper has a purity of 99.9999%, with a continuous crystalline structure that eliminates the grain boundaries found in conventional copper. These boundaries act as barriers to signal flow, creating distortion and attenuation. The single-crystal structure ensures a uniform electrical path, reducing background noise and preserving the micro-details of the digital signal.
Does the Explorer 45 USB require a break-in period?
Listening tests conducted over several days did not reveal significant sonic changes after the initial break-in period. The cable reaches its optimal performance quickly, although some users may perceive subtle improvements after a few hours of use, mainly due to the thermal stabilization of the dielectric materials.
How does the Explorer 45 USB compare to Siltech’s silver cables?
While Siltech is globally renowned for its advanced silver conductors, the copper-based Explorer range is no poor relation. 6N single-crystal copper delivers a natural timbre and tonal balance particularly suited to systems seeking warmth and harmonic density, whereas silver emphasizes speed and ultimate resolution.
Can the Explorer 45 USB be used for non-audio data transfers?
Although designed to optimize digital audio transmission, the Explorer 45 USB works perfectly for any USB data transfer. Its robust construction and effective shielding make it a relevant choice even in challenging electromagnetic environments where transfer reliability is critical.
Is the Explorer 45 USB compatible with USB 3.0 and above?
The cable supports USB 2.0 protocols, which are more than sufficient for high-resolution audio up to DSD512 and PCM 32-bit/768 kHz. For applications requiring USB 3.0 or higher, check specific compatibility with your dealer, as some versions may be optimized for these protocols.
- Eco-contribution included in the sale price.
